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3 years ago

A) Expand and simplify the following expression. x(4x – 5) – 2(x² - 4x + 6)

Mathematics

2 answers:

LekaFEV [45]3 years ago

6 0

Answer:

I love algebra anyways

the ans is in the picture with the steps

(hope it helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Bezzdna [24]3 years ago

4 0

Answer:

$2x^{2} - 12x -12$

Step-by-step explanation:

$4x^{2} - 5x - 2x^{2} - 8x -12$

$2x^{2} - 12x -12$

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A population of insects grows exponentially, as shown in the table. Suppose the increase in population continues at the same rat

oksano4ka [1.4K]

Answer-

The insect population at the end of week 11 is 1730.

Solution-

A population of insects grows exponentially.

The general form of exponential function is,

$y=ab^x$

Where,

a, b are constants.

Putting the data given in the table, in the the equation in order to get the values of a, b

At (0, 20)

$\Rightarrow 20=ab^0$

$\Rightarrow a\cdot (1)=20$

$\Rightarrow a=20$

Now the exponential function becomes,

$y=20b^x$

At (1, 30)

$\Rightarrow 30=20b^1$

$\Rightarrow 20b=30$

$\Rightarrow b=\dfrac{30}{20}$

$\Rightarrow b=\dfrac{3}{2}$

Now the equation becomes,

$y=20(\frac{3}{2})^x$

For calculating the number of insects at the end of the 11th week, putting x=11, so

$y=20(\frac{3}{2})^{11}$

$=1729.95 \approx 1730$

8 0

4 years ago

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Jasper wants to buy a video game that costs $35. He has $10.50, and his weekly allowance is $5. If w represents the number of we

Ksju [112]

Answer:

He would have to wait for 5 weeks

Step-by-step explanation:

$5 x $5 = $25

$25 + $10.50 = $35.50

6 0

4 years ago

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The graphs below have the same shape. What is the equation of the graph of g(x)?

USPshnik [31]

Answer:

Step-by-step explanation:

B. Because adding 2 moves you to the left when inside the parentheses.

7 0

3 years ago

P={x:x is a natural number,x<9

Elanso [62]

Answer:

x:x = 1 so it is a natural number

Step-by-step explanation:

it can be any negative number because: -x<9

and any number from 1 to 8

(x cannot be 0, because you cannot do 0/0 = 1)

5 0

3 years ago

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W−(−1/3)=2.05 helppppppppppppppppp

IceJOKER [234]

Answer:

The answer for this math question is w = 1.71

8 0

3 years ago

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